Water ink printing technology of corrugated box

Flexo printing technology of corrugated carton

The position and accuracy of the plate roller of the multi-color printing slotting carton machine, The adjustment of the feed roller and the traction roller, the use of the traction belt, the accuracy of the plate arrangement and the warpage of the cardboard will have a direct impact on the overprint effect. To solve the problem of inaccurate overprinting in multi-color printing, first, the plate roller of each color should be slightly higher than the previous pressure, so as to make the pressure applied on all colors equal; Ghost is caused by the deformation of the anilox roller pressing the printing plate (refers to the flexographic plate) due to the excessive upper pressure. Therefore, the gap between the two rollers should be increased and the pressure should be reduced accordingly; To solve the problem of printing white leakage, the gap and pressure between the plate roller and the impression roller should be adjusted. As the gap between the plate roller and the impression roller is too large, the large-area printing will produce inaccuracy, which needs to increase the downward pressure. In addition, the unevenness of the printing plate, the plate lining, the hardness of the printing plate and other quality will affect the occurrence of the above problems, and should be adjusted locally. www.chinacartonmachine.com

The problems in the ink-jet printing process of corrugated cartons should be solved in a timely manner, which can improve the efficiency and value in use, not delay the normal production and life, and improve the quality in actual use. The problems that may occur in the water ink printing process of corrugated cartons, such as double shadows and white leakage of printing, lead to the quality problems of different cartons produced. The reasons for this problem are obvious. It is the fault of the printing machine. Analyze it according to the methods and methods, and carry out good maintenance and repair to solve the problems. Print ghosting and trapping. These are two problems that often occur in the production process. Ghosting around printed patterns or characters is caused by excessive pressure between anilox roller and printing plate; The double image on the front edge of the printed word is caused by the excessive pressure between the printing cylinder and the impression roller; In large-area printing, the bottom and white leakage are caused by insufficient pressure between the printing roller and the impression roller. To solve the printing ghost problem, the gap and pressure between the anilox roller and the plate roller should be adjusted. Secondly, pay attention to adjusting the gap and position of the feed roller and the traction roller at the front and rear of each printing machine, especially when the width of the cardboard is too narrow. In case of local color registration, two traction belts shall be added at the edge of each printing plate to ensure smooth transition of the paperboard during printing; In addition, due to the different warpage of corrugated cardboard, the cardboard should be replaced and leveled at the same time.

Inquiry for Our Product

When you contact us, please provide your detail requirements.
That will help us give you a valid quotation.

1. Your Name *
2. Your E-mail *
3. Message *